<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>系统首页</title>
</head>
<body>
<h1 align="center">系统首页</h1>
<a href="/query">查询用户</a>
<br>
<a href="/add">添加用户</a>
<br>
<a href="/update">更新用户</a>
<br>
<a href="/delete">删除用户</a>
<br>
<a href="/export">导出用户</a>
<br>
<br><br><br>
<h2><a href="/logout">退出</a></h2>
<br>
</body>
</html>
